The old comrades-in-arms, Csöpi Ötvös and Doctor Kardos, find each other again. They are still on the shores of Lake Balaton, this time on the trail of jewel thieves. The old team is joined by pretty, young policewomen.

This time the story is about car theft. Cars stolen in the same way will never be found again. They disappear like camphor. This time, Twitchy, Dr. Kardos, Havilúd and the others are working on solving this case.

Five-Fingered Dude is no longer on the force, running a yacht club, when a prostitute is found dead. The case is taken over by Doctor Kardos, eager but clumsy. Meanwhile, a kidnapping case becomes entangled. Doctor Kardos is in charge of the "fight" from the front line, using all "modern" means. The investigation would not succeed without the intervention of Tiny and her little team.